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The Neural basis of free language choice in bilingual speakers: disentangling language choice and language execution

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dc.contributor.author Reverberi, Carlo
dc.contributor.author Kuhlen, Anna K.
dc.contributor.author Seyed-Allaei, Shima
dc.contributor.author Greulich, R. Stefan
dc.contributor.author Costa, Albert, 1970-
dc.contributor.author Abutalebi, Jubin
dc.contributor.author Haynes, John-Dylan
dc.date.accessioned 2019-05-28T12:56:13Z
dc.date.available 2019-05-28T12:56:13Z
dc.date.issued 2018
dc.identifier.citation Reverberi C, Kuhlen AK, Seyed-Allaei S, Greulich RS, Costa A, Abutalebi J, Haynes JD. The Neural basis of free language choice in bilingual speakers: disentangling language choice and language execution. NeuroImage. 2018 Aug 15;177:108-16. DOI: 10.1016/j.neuroimage.2018.05.025
dc.identifier.issn 1053-8119
dc.identifier.uri http://hdl.handle.net/10230/41637
dc.description.abstract For everyday communication, bilingual speakers need to face the complex task of rapidly choosing the most appropriate language given the context, maintaining this choice over the current communicative act, and shielding lexical selection from competing alternatives from non-target languages. Yet, speech production of bilinguals is typically flawless and fluent. Most of the studies available to date constrain speakers' language choice by cueing the target language and conflate language choice with language use. This left largely unexplored the neural mechanisms underlying free language choice, i.e., the voluntary situation of choosing the language to speak. In this study, we used fMRI and Multivariate Pattern Analysis to identify brain regions encoding the target language when bilinguals are free to choose in which language to name pictures. We found that the medial prefrontal cortex encoded the chosen language prior to speaking. By contrast, during language use, language control recruited a wider brain network including the left inferior frontal lobe, the basal ganglia, and the angular and inferior parietal gyrus bilaterally. None of these regions were involved in language choice. We argue that the control processes involved in language choice are different from those involved in language use. Furthermore, our findings confirm that the medial prefrontal cortex is a domain-general region critical for free choice and that bilingual language choice relies on domain general processes.
dc.description.sponsorship CR and SSA were supported by the PRIN grant 2010RP5RNM_001 from the Italian Ministry of University; AC was supported by two grants from the Spanish Government, PSI2011-23033, PSI2014-52181-P, a grant from the Catalan government (AGAUR SGR 268), and a grant from the European Research Council under the European Community's Seventh Framework Programme (FP7/2007–2013 Cooperation grant agreement nº 613465 - AThEME).
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.relation.ispartof NeuroImage. 2018 Aug 15;177:108-16.
dc.rights © Elsevier http://dx.doi.org/10.1016/j.neuroimage.2018.05.025
dc.title The Neural basis of free language choice in bilingual speakers: disentangling language choice and language execution
dc.type info:eu-repo/semantics/article
dc.identifier.doi http://dx.doi.org/10.1016/j.neuroimage.2018.05.025
dc.subject.keyword Bilingualism
dc.subject.keyword Language
dc.subject.keyword MVPA
dc.subject.keyword Free choice
dc.subject.keyword Cognitive control
dc.subject.keyword Time-resolved fMRI
dc.subject.keyword Speech
dc.subject.keyword Intention
dc.subject.keyword Lexicon
dc.subject.keyword Naming
dc.relation.projectID info:eu-repo/grantAgreement/ES/3PN/PSI2011-23033
dc.relation.projectID info:eu-repo/grantAgreement/ES/1PE/PSI2014-52181-P
dc.relation.projectID info:eu-repo/grantAgreement/EC/FP7/613465
dc.rights.accessRights info:eu-repo/semantics/openAccess
dc.type.version info:eu-repo/semantics/acceptedVersion

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